Trolley-wheel.



No. 726,587. PATENTED APR. 28, 1903.

G. S. STANTON.

TROLLEY WHEEL.

APPLIOA'IION rum) AWL-20, 1902.

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CHARLES S. STANTON, OF HARTVICK, NEW YORK.

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SPECIFIUATIQN forming part Of Letters Patent INC. 726,587, dated April 28, 1903.

Application filed August 20,1902. 'Serial No. 120,403. (No model.)

To all whmn it may concern.-

Beit known that 1, CHARLES S. STANTON, a citizen of the United States, residing at Hartwick, in the county of Otsego and State of New York, have invented a new and useful Trolley-VVheel, of which the following is a specification.

My invention relates to certain improvements in trolley wheels and supports of that class employed for contact with the overhead conducting-wires of electrical railways.

One of the principal objects of my invention is to provide an improved trolley-wheel and supporting fork-head by which the spreading and burning out of the forks may be prevented and the trolley proper will have a smooth easy hearing.

A further object is to so construct the several parts that one or all of the parts may be replaced when worn or burned out and in which provision is made for the proper lubricating of the trolley without interfering with the passage of the current from the trolleywheel to the current-conductors.

With these and other objects in view the invention consists in the novel construction and combination of parts hereinafter .described,illustrated in the accompanying drawings, and particularly pointed out in the appended claims.

In the drawings, Figure 1 is a perspective view of a trolley-wheel and forked supporting-head constructed in accordance with my invention. Fig. 2 is a sectional elevation of the same. Fig. 3 is a detail perspective view of the two main bearing members detached from the trolley-wheel.

Similar numerals of reference are employed to designate corresponding parts throughout the several figures of the drawings.

The trolley-arm is bifurcated at its upper end, presenting a pair of forked arms 11, in which are formed alining openings 12 for the passage of a securing-bolt 13. In the inner face of each arm is formed a rectangular recess let, open to the top of the arm and adapted to receive the rectangular ends 15 of two bearing-disks l6 and17, respectively, said rectangular portions being fitted closely within the slots and their lower faces resting on the bottom walls of such slots in order to resist the down ward movement occasioned by the stress of the supporting-spring of the trolley-arm. The disks 16 and 17 have comparatively broad peripheral surfaces 18, and in said disk 16 is formed an opening 19 for the reception of a hollow stem or spindle 20, the outer end of which is locked to the disk 16 by a suitable set-screw 21. The structure is such that the two bearing-disks will be held from movement either laterally or vertically, and any spreading movement of the disk or spreading of the forks is prevented by a bolt 13, which extends entirely through the disk 17 and its stem or spindle 20, one end of the bolt being provided with an enlarged head and the opposite end being provided with a transverse recess or opening for the passage of a locking-key 22. The rectangular rear face of the disk 17, together with the disk and spindle, forms a solid body which extends from fork to fork and prevents any binding movement of the fork-arms on the trolley, while any spreading tendency is immediately resisted by the headed bolt and its locking-key. The hearings in the fork-arms are thus rigidly locked together and any lateral play is prevented.

The trolley-wheel 24 has a central opening for the passage of the stem of the disk 17, and in its opposite side are formed circular recesses for the reception of the disks 16 and 17, the depth of such recesses being preferably equal to the width of the peripheries of the disk, so that no projecting surfaces will be formedfor the accumulation of dirt. To provide for the proper lubrication of the trolley-wheel, each of the disks is provided with an annular groove 25 in that face adjacent tothe web of the trolley-wheel, such grooves being filled with a heavy or a solid lubricant which will act to reduce the friction between the spindle 20, the disks, and the trolleywheel, or in some cases bearing-balls may be introduced into these grooves to assist in re- 9 5 IOG of the disk, while the sidewise thrust is taken up by one or other of the disks, but in such manner that any spreading of either the disks or the supporting-forks will be absolutely prevented.

In some cases a threaded opening may be formed in the disk 16 for the reception of the similarly-threaded portion of the stem 20, so

that the trolley-wheel and disk members may be more readily assembled and adjusted, although the set-screw 21 is sufficient for all practical purposes.

WVhile the construction herein described and illustrated in the accompanying drawings is the preferred form of the device, it is obvious that various changes in the form, proportions, size, and minor details of the structure may be made Without departing from the spirit or sacrificing any of the advantages of my invention. I

Having thus described my invention, what I claim is 1. The combination of the recessed forkarms, bearingdisks having portions adapted to said recesses, a'hollow stem or spindle forming part of one of the disks and at its opposite end bearing against the inner face of the opposite fork-arm to form a rigid spacingblock between the two fork-arms, means for locking the disks rigidly-to said fork-arms and to each other, and a trolley-wheel supported by said disks.

2. The combination of the fork-arms having polygonal recesses, bearing-disks having polygonal portions adapted to said recesses, a stem or spindle carried by one of said disks and connected to the opposite disk, means for securing the disks to the fork-arms and for preventing spreading movement of said fork-arms, and a trolley-wheel supported by said disks.

3. The combination of the recessed forkarms, a pair of bearing-disks having polyg onal portions adapted to said recesses, a stem or spindle carried by one of said disks and extending through the opposing disk into contact with the opposite fork-arm, a bolt extending through the stem or spindle, the disks and the fork-arms for securing said disks and fork-arms in position, and a trolley-wheel supported by said disks, substantially as specifled.

4:. The combination of the fork-arms, bearing-disks rigidly secured to said fork-arms and having annular grooves for the reception of a lubricant, and a trolley-wheel having recesses in its opposite sides for the reception of said disks.

5. The combination of the fork-arms having rectangular recesses 14, a pair of disks having rectangular projections 15 adapted to said slots, a stem or spindle 20 carried by one of said disks and projecting through an opening in the opposite disk, thereby to form an unyielding connection between the two forkarms, a bolt extending through openings in the fork-arms and spindle and a trolley-wheel having recesses for the reception of the disks and provided with a central opening for the passage of the said spindle or stem, substantially as specified.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

CHARLES S. STANTON.

VVitnesses-z G. E. SCHOOLCRAFT, H. C. BRADLEY. 

